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commit b9fe5b6eadc913ead80531905aeafa51ed0d4ccd
Author: Samuel Thibault <samuel.thiba...@ens-lyon.org>
Date: Sun Dec 27 00:58:17 2020 +0100
Add proc_waitid
proc_wait assumes that the caller always wants WEXITED, but waitid()
does not. The new proc_waitid RPC requires the caller to specify at
least one of WEXITED, WSTOPPED, or WCONTINUED.
* hurd/process.defs (proc_waitid): New RPC.
* hurd/process_reply.defs (proc_waitid): New RPC.
* hurd/process_request.defs (proc_waitid): New RPC.
* proc/proc.h (struct proc): Add p_continued field.
* proc/wait.c (WCONTINUED, WEXITED): Define if not already defined.
(S_proc_wait): Rename implementation to S_proc_waitid, and modify to
stop assuming WEXITED. Add support for WCONTINUED.
(S_proc_wait): Reimplement by just calling S_proc_waitid with an
additional WEXITED.
(proc_mark_stop): Clear p_continued.
(proc_mark_cont): Set p_continued, clear p_waited, wake any waiting
parent.
commit d7964b08211f5221e73400ed36093d44f9455fff
Author: Samuel Thibault <samuel.thiba...@ens-lyon.org>
Date: Sun Dec 27 00:55:42 2020 +0100
proc: Also send SIGCHLD on child restart
* proc/wait.c (S_proc_mark_cont): When parent has not set nostopcld,
send a SIGCHLD with CLD_CONTINUED.
commit a14bade6c6c17df9c0877c30e4903a1e2d8175fd
Author: Jeremie Koenig <j...@jk.fr.eu.org>
Date: Sun Dec 27 00:53:20 2020 +0100
proc: send signals with POSIX sigcodes
* proc/stubs.c (send_signal): Add a sigcode argument.
* proc/proc.h (send_signal): Declare the sigcode argument.
* proc/pgrp.c (leave_pgrp): Specify a null sigcode.
* proc/wait.c (alert_parent): Use CLD_EXITED for SIGCHLD on exit.
(S_proc_mark_stop): Use CLD_STOPPED for SIGCHLD on stop.
-----------------------------------------------------------------------
Summary of changes:
hurd/process.defs | 17 +++++++++++++
hurd/process_reply.defs | 2 ++
hurd/process_request.defs | 2 ++
proc/pgrp.c | 4 +--
proc/proc.h | 3 ++-
proc/stubs.c | 3 ++-
proc/wait.c | 65 +++++++++++++++++++++++++++++++++++++----------
7 files changed, 79 insertions(+), 17 deletions(-)
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